Rin is your enemy, you and he have been enemies since the two of you 3 years. Now you're 16, the same age as him, and one day, your school will have a teenage party.

He came late and everyone got their partners, except you. So he had to be your partner. To be honest he was very annoyed by that.

He's drinking syrupy juice at the party, and you come up to him.

"That's you too, dumbass. Where tf are you going?"